United Technical Operations


United Technical Operations is the maintenance business within United Continental Holdings, Inc., bringing 85 years of MRO experience, employee talent and operational integrity to our customers. As a full-service global MRO provider, our specialized areas include: engines, line maintenance, global emergency maintenance (GEM), landing gear, parts loans, component maintenance and engineering services. United is also proud to support several government programs that encompass a variety of services from our product portfolio.

The United Technical Operations MRO Center, located in San Francisco, is a 2.9 million-square-foot facility that is home to more than 3,500 technicians, management, and support personnel. Our engine shop has held International Standards Organization (ISO) certification since 1997 and is the only airline facility of a U.S. carrier to achieve ISO 9001:2008 certification for its engine maintenance operation.

By leveraging United's many years of experience and leadership in safety, logistics, and operational excellence, United Technical Operations continues to deliver innovative and cost-efficient services to more than 100 customers worldwide. Additional airline contract business includes aircraft sales, engine and APU sales and leases as well as ground handling and flight training.

  • Greg Hart
    Senior Vice President, Technical Operations

    Greg Hart is Senior Vice President, Technical Operations, for United, the world’s leading airline. In this role, Hart oversees United’s Global Technical Operations, including line and base maintenance functions. He is responsible for aircraft reliability and regulatory compliance, and oversees administrative, engineering, planning and production support of airframes, engines and components, as well as continuous improvement programs and third-party sales.

    Previously, Hart was Senior Vice President Network for United. Prior to that role, he served as Vice President of Network Strategy for Continental Airlines from 2008 to 2010.

    Hart held various leadership positions at Continental Airlines since joining in 1997, including Staff Vice President of Domestic Scheduling and Managing Director of Corporate Development. He began his career at the airline in the Continental Micronesia division. Before joining Continental, Hart worked at American Airlines in various finance roles for four years.

    A native of Milwaukee, Hart received his bachelor’s degree from the University of Wisconsin in 1987 and a master’s in business administration from Cornell University in 1993. He is married and has two children.

  • Mark Mounsey
    Vice President, Technical Operations Base Maintenance

    Mark Mounsey is Vice President, Technical Operations Base Maintenance, for United, the world’s leading airline. In this role, Mounsey oversees Base Maintenance Operations at United’s maintenance facilities in San Francisco and Houston. He is responsible for the overhaul and repair of the Pratt & Whitney family of engines, key aircraft components, insourced APUs, select aircraft modifications, as well as C Checks on Airbus, 737, 757, and 777 aircraft. Mounsey also leads the United Services Sales and Marketing organization. He has been with United in this role since 2009. Prior to this role, Mounsey worked for Pratt and Whitney Aircraft Engines. His last assignment at Pratt was Managing Director of Pratt’s largest commercial engine overhaul center. Mounsey’s career with Pratt & Whitney spanned two decades, where he held various leadership positions in engine development and validation, commercial parts manufacturing, engine repair and overhaul, new business development, solid rocket manufacturing, financial planning and control, as well as mergers and acquisitions.

    Mounsey received his bachelor’s degree in mechanical engineering from Florida International University and his master’s in business administration from Florida Atlantic University. He is formally trained in the Toyota Production System and is a graduate of the department of defense acquisition program management curriculum. He has two children.

  • Joe Ferreira
    Vice President, Line Maintenance

    Joe Ferreira is Vice President, Line Maintenance, for United, the world’s leading airline. He is responsible for 5,464 employees and 64 manned maintenance stations worldwide.

    Ferreira joined United in 1985 as Manager of Maintenance Control for Houston and Aircraft Maintenance Manager for Newark. He held various positions of increasing authority within technical operations including Staff Vice President of Technical Operations and Vice President of Technical Operations and Warehousing.

    Ferreira began his career as a U.S. Army helicopter technician and crew chief on BELL UH-IH helicopters and was also an inspection supervisor for Agusta International, Saudi Airlines.

    Ferreira holds equipment qualifications on the Boeing 737-100/200/300, Boeing 727-100/200 and Boeing 747-100/200. He also holds an Airframe and Powerplant license from Piedmont Aerospace Institute.

Customers with a GEM can view the current status of their aircraft.

Please ask your United Technical Operations Representative to provide you with a GEM ID and password.